Security monitoring device



FIG. 1 is a front, right perspective view of a security monitoring device showing the new design;

FIG. 2 is a rear, left perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in FIG. 8 depict portions of the security monitoring device that form no part of the claimed design. 

CLAIM What is claimed is the ornamental design for a security monitoring device, as shown and described. 